宽甸岩金预测区指示元素的优选

本文介绍了在宽甸无已知金矿床地区岩金预测工作中优选指示元素的思路。依据金矿地球化学理论,参考成矿带内已知金矿地球化学资料初选指示元素作为化学分析项目。化学分析结果出来后,编制地球化学图件时,考虑到减轻图幅负担和编图工作量,突出有用找矿信息,我们利用元素的变异性和致矿系数筛选出具有明显变异性和较高致矿性的元素,在此基础上利用元素间统计相关性和空间相关性,保留与成矿元素Au有明显相关性的元素,作为优选出的指示元素。

THE METHODS OF CHOOSING INDICATOR ELEMENTS IN GOLD DEPOSITS SURVEY OF KUANDIAN

In this paper,the authors have introduced some methods of choosing indicator elements in undiscovered gold deposit area of kuandian county According to the known geochemical theory of gold deposit and geochemical data of gold deposit in metallogenic belt,the authors primarily elect the indicator elements as the project of chemical analysis.In the process of drafting geochemical map,we use the variation character and metallogenic feature of elements to choose some elements with obvious variation character and higher metallogenic feature Based on the above,we use statistical and spatial correlations among elements to reserve those elements with obvious correlation to Au element as the optimum choosed indicator elements